Normally this prefix will combine with the root to make a word that uses the ela geminada. For example, il- and legal combine to form il·legal. but for some words, the use of the ela palatal will provide an alternate form or the preferred form. Thus il- and legible can combine to form either illegible or il·legible, while il- and letrat ‎(“literate”) combine only as illetrat ‎(“illiterate”) in Standard Catalan, although il·letrat is a common, but still illiterate, misspelling.